That's awesome! Love it! The only other one I've seen is Adam Block's comparison of a 1999 image with a 2012 version. While not as crisp, this version shows the overall expansion and propagation of the shock waves much more clearly and smoothly. Thanks for drawing attention to this Peter!
I agree with Marcus, pretty darn cool that . Everything always seems so static in the deep sky but every now and then patient collections like this remind us it is indeed all slowly changing...at high velocity!
I wonder how much of it is artifact and how much is actually real?
Still, it's cool to see it pulsate.
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The foreground stars aren't moving. Its probably not artefact.
The pulsing is a loop effect of the gif... straight expansion. Fascinating to watch that "billowing steam" effect from the core. Pretty much what I'd expect to see coming from the most active part of the nebula.
. Everything always seems so static in the deep sky but every now and then patient collections like this remind us it is indeed all slowly changing...at high velocity!
